Time-resolved X-ray multi-projection imaging for materials science

Time-resolved X-ray tomography at light sources has experienced rapid development in the last 10 years, evolving from static or quasi-static 3D acquisitions to 3D movies at 200 Hz, as recently demonstrated. The rapid evolution of such techniques results from the improvement of sources, detectors, and reconstruction algorithms. However, the acquisition or rotation process has not been changed and has become a bottleneck to explore faster dynamics. For example, rotations induce shear forces that may alter the studied dynamics and difficult for the sample environment to probe such dynamics. We recently have demonstrated at ESRF X-ray multi-projection imaging (XMPI) that avoids rotating the sample by illuminating it with several X-ray beams. Thus, we will demonstrate imaging of previously inaccessible dynamic processes evolving at timescales that cannot be accessed with currently existing techniques.